[G4] OWC Mercury Extreme G4 1.4 GHz upgrade to Quicksilver 2002

[Ron Steinke]

On 22 Apr, 2005, at 20:41, Steve Goldstein wrote:

  Yet, all my other USB devices, including several solid state flash 
drives, a HP printer and a Dymo Label Writer and a Palm PDA, and, of 
course, keyboard and mouse all work fine with the new processor.   Just 
external USB hard disks won't work.

You may not be getting enough power to the external USB hard drives for 
them to operate and be recognized properly. Have you tried attaching 
the external drive case to a powered hub and still not have it be 
recognized?

A PCI USB card may not give enough power to the sockets to energize a 
hard drive but will give enough to a memory stick. Your other devices 
that you listed all either do not need a large amount of power or they 
receive power from their own transformers and are not dependent on the 
PCI card at all for power.

Your printer and label writer should have their own external power 
adapters and your PDA has on-board batteries for operation. 'Nuff said?